Design of a compact self-coupled resonator and dual-band bandpass filter in 0.13-μm CMOS technology for millimetre-wave application

Design of a miniaturized resonator and its application for dual-band bandpass filter design for millimeter-wave application is presented in this paper. Both the resonator and filter are implemented in a standard 0.13-μm (Bi)-CMOS technology. The performance is extensively verified using an EM simulator from NI-AWR. Using the presented resonator structure, two transmission zeros can be generated and effectively controlled. By feeding the resonator using a capacitive coupling technique, a dual-band bandpass filter that operated at 40 GHz with insertion loss of − 0.7dB and at 71 GHz with insertion loss of − 1.5dB, respectively. The proposed design achieves a reduced layout size of 302 μm × 131 μm.